The Smartwool Mountaineering Extra Heavy Crew Socks will keep your feet warm and dry when you're mountaineering, ice climbing or multi-day backpacking.
83% Merino wool / 16% Nylon / 1% Spandex
WOW Technology in reinforced sole for maximum comfort and durability
2x1 Ribbed knit cuff
SmartWool Fit System with arch and ankle support